Finding the Fourth Proportional to 305,886.57, 458,312.05 and 187,310.26
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Solution
The fourth proportional to 305,886.57, 458,312.05 and 187,310.26 is: 280,648.31
Step by Step Solution
- Step 1: Write the proportion equation
305,886.57 : 458,312.05 = 187,310.26 : x - Step 2: Convert to fraction form
305,886.57/458,312.05 = 187,310.26/x - Step 3: Cross multiply
305,886.57x = 458,312.05 × 187,310.26 - Step 4: Simplify right side
305,886.57x = 85,846,549,246.63 - Step 5: Solve for x
x = 85,846,549,246.63/305,886.57 - Step 6: Final answer
x = 280,648.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.